Space-confined growth of layered basic zinc acetate nanosheets and their orderly fragmented ZnO nanoparticles on clay platelets

被引：16

作者：

Ahmad, Shakiaz ^{[1
]}

Su, Xintai ^{[1
,3
]}

Yang, Chao ^{[1
,2
]}

Wang, Xinyu ^{[1
]}

Liu, Xuemin ^{[3
]}

Wang, Jide ^{[1
]}

机构：

[1] Xinjiang Univ, Minist Key Lab Oil & Gas Fine Chem, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China

[2] Xinjiang Dean Environm Protect Technol Inc, Urumqi 830046, Peoples R China

[3] South China Univ Technol, Engn & Technol Res Ctr Environm Nanomat, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2019年 / 371卷

关键词：

Clay-based hybrids; Space-confined growth; Nano-fragmentation; Layered basic zinc salts; ZnO/bentonite; CONGO-RED; AQUEOUS-SOLUTIONS; PHOTOCATALYTIC ACTIVITY; ANTIBACTERIAL ACTIVITY; OXIDE NANOPARTICLES; EFFECTIVE ADSORBENT; HOLLOW SPHERES; BENTONITE; ADSORPTION; REMOVAL;

D O I：

10.1016/j.jhazmat.2019.02.111

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Here, hierarchical nanostructures of clay-based hybrids were synthesized via a space-confined growth of layered basic zinc acetate (LBZA) nanosheets standing upright on both sides of bentonite clay platelets. These thermally instable LBZA nanosheets were thermally decomposed and fragmented into ZnO nanoparticles well-dispersed on bentonite platelets. The morphology and structure of LBZA/bentonite and ZnO/bentonite was characterized by SEM, TEM, XRD, TG-DSC, and FTIR. Surface density of LBZA nanosheets on bentonite platelets was simply controlled by tuning the amount of zinc acetate. LBZA/bentonite and ZnO/bentonite was used for the adsorption of Congo red (CR) and photodegradation of methyl orange (MO), respectively. Results showed that LBZA/bentonite exhibited higher adsorption capacity for Congo red (CR) than original bentonite. In addition, bentonite-supported ZnO nanoparticles efficiently promoted the photodegradation of MO under UV light irradiation.

引用

页码：213 / 223

页数：11

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